Grand Rock

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Grand Rock 5" X 20" Straight Cut;OD Chrome S5-120SBS4

MSRP: $203.18

$171.34

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Grand Rock 6" X 20" Chrome Straight Cut;OD Bottom S6-120SB

MSRP: $304.78

$252.12

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Grand Rock 6" X 54" Straight Cut ,OD Chrome S6-20SBC

MSRP: $609.58

$504.26

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Grand Rock 6" X 36" Brute;R5" ID; Chrome SB8-4576BB-2

MSRP: $761.98

$642.58

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Grand Rock 7"X36" Brute;R5" OD;Chrome SBR6-96SBS-5

MSRP: $1,142.98

$945.52

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Grand Rock Duplex Kit 94-02 Peterbilt 379 Retro Fit With Offset Brackets 39660-L

MSRP: $4,444.93

$3,399.98

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Grand Rock Duplex Kit 03-Newer Peterbilt 379 Retrofit With Offset Brackets 6PK-9052OSRF

MSRP: $4,444.93

$3,399.98

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Grand Rock Duplex Kit 94-02 Peterbilt 379 Retro Fit With Offset Brackets 6SP-55SBC

MSRP: $4,970.76

$4,112.02

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Grand Rock Duplex Kit 03-Newer Peterbilt 379 Retrofit With Offset Brackets 7PK-9052OSRF

MSRP: $4,970.76

$4,112.02

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Grand Rock Duplex Kit 94-02 Peterbilt 379 Retro Fit With Offset Brackets 8PK-5655OSOE

MSRP: $5,714.98

$4,727.68

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Grand Rock Duplex Kit 03-Newer Peterbilt 379 Retrofit With Offset Brackets 8PK-9052OSRF

MSRP: $5,714.98

$4,727.68

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Grand Rock 5" Duplex Y-Pipe Kit; Aluminized DEOX-12OZ-12PK

MSRP: $383.98

$318.24

2083 products total

OUR MISSION STATEMENTTo our valued customers, At Grand Rock, we promote and work hard every day to provide our customers with the highest possible solutions, while maintaining good business values. We value our people, encourage their development and reward their performance. Our improved environmental outcomes can ride the coattails of our lean culture change; this is a win for our business, our customers, and a win for environmental improvement.We have the widest selection of exhaust products and for over 40 years our quality, dedication, customer service and efficiency have been put to a test, and after all those years we can proudly say that we are ready to take another step with our customers towards a promising future.Thank you, Grand Rock Team